Tape-feeding mechanism for recording instruments.



A. H. MARTIN. TAPE FEEDING MECHANISM FOR RECORDING INSTRUMENTS.APPLICATION TILED APR. 24, 1911.

1,01 7,984. Patented Feb, 20, 1912.

awoewtoz CLJCKIVO/f a Wy MM UNITED STATES PATENT OFFICE.

AUBRY H. MARTIN, OF SHORT HILLS, NEW JERSEY, ASSI GNOR TO RECORDINGSPEED- OMETER COMPANY, OF NEWARK, NEW JERSEY, A CORPORATION OF NEWJERSEY.

Tarn-FEEDI G mncnanism non RECORDING INSTRUMENTS.

To all whom it may concern;

Be it known that I, AUBRY H. MARTIN, a citizen of the United States,residing at Short Hills, in' the county of Essex and State of NewJersey, have invented certainnew and useful Improvements in Tape-FeedingMechanism for Recording Instruments, of which thefollowing is aspecification, reference being had therein to the accompanydrawings.

My invention relates to recording instruments, in which it is desired tomove past a recording device, a predetermined amount of tape during acertain period of time, or

during the operation of some mechanical de-,

vice, as the revolution of a wheel of a vehicle, and its object is toprovide a mechanism for feeding the tape of such instruments which willwithstand the vibration and jars to which such instruments are usuallysubjected, which may be readily adjusted as to the amount oftape to befed, and which is economical of construction. I attain these objects bythe device illustrated in the accompanying drawin s, in which similarcharacters of reference indicate similar parts throughout the variousviews.

I illustrate and describe my device as adapted to the instrument showninLetters Patent No. 949,000, granted February 15, 1910, to George S.Maxwell, without limiting myself to such adaptation,

Figure 1 is a perspective view of my invention, 2 is a plan thereof, andFig. 3 is a plan view of a modification.

1 is the supply case in which the tape 3 is stored in any convenientmanner; 4 is a ide-t-able over which tape 3 passes as it eaves case 1.The take-up roll 2 is mounted on swinging arm 8 at the opposite end oftablegg Upon clockwork mechanism is mountedifdisk 5, said clockworkbeing adapted to revolve said disk 5 once every hour. Upon swinging arm9 is mounted the roller or idler 10, of much smaller diameter than' disk5. The swinging arms 8 and 9 are so arranged with reference to disk 5that spring 7 may maintain roll 2, roller 10 and .disk 5 in operativerelation with each other.

The arrows indicate the direction of operation. The peripheries of disk5' and idler 10 are provided with teeth or milled or roughened surfaces,so that the will gri each other and the tape on rol 2. Pre erably, I usea knurl in preparing these Specification of Letters Patent.

Application filed April 24;, 1911.

Patented Feb.'20, 1912.

Serial m1. 622,853.

peripheries. By changing the diameter of disk 5, it will be understoodthat the amount of tape to pass a given point on table 4 during onerevolution, may be varied.

In the modification shown in Fig. 3, the idler 10 is omitted. The diskoperates directly on the tape 13 on roll 12 which is -mounted on arm 18,and maintained in operative relation with disk 15 by sprin 17. As roll12 is revolved it pulls tape 13 rom case 11 over table 14. By changingthe diameter of disk 15 the amount of tape to be fed may be adjusted. a

What I claim and desireto secure by Letters Patent is:

1. A speed recorder for recording the movements of a member drivenautomatically from a vehicle, including a device for feeding tape inpredetermined amounts past said member and a clockwork for operating thetape-feeding device, said tape-feeding device consisting of a storagedevice for the tape, a roll adapted as it revolves to wind the tapethereon, a disk having a circumference equal to the predetermined amountof tape to be fed, and provided on its periphery with a surface adaptedto grip the.

tape, said roll, disk and tape being arranged so that said disk is incontact with said tape only at the point where the peripheries of saidroll and said disk are urged together, said disk being driven from theclockwork, and means for maintaining said. roll in operative relation tosaid disk.

2. A speed recorder for recording the. movements of a member drivenautomatically from a vehicle, including a device for feeding tape inpredetermined amounts past said member, and a clock-work for operatingthe tape-feeding device, said tape-feeding device consisting of astorage device for the tape, a roll adapted as it revolves to wind thetape thereon, a disk substantially midway of the width of the tape andhaving a circumference equal to the redetermined amount of tape to befed, an provided on its periphery with a surface adapted to grip thetape, said roll, disk and tape, being arran ed so that said disk is incontact with sai tape only atthe point where the peripheries of saidroll and said disk are urged together, said disk being driven from theclockwork, and means for maintaining said roll in operative relation tosaid disk; substantially as described.

Correction in Letters Patent Ne. 1,017,984

smaller diameter than said disk mounted between the roll and said' disk,said disk and said idle roller being provided on their peripheries withsurfaces adapted to grip each [SEAL] I other, and the tape,

thereon, a disk substantially mid-- tape being arranged so that saididle roller is in contact With said tape only at the point Where theperipheries of said roll and said idle roller are urged together, saiddisk being driven from the clock-Work, and means for maintaining saiddisk, said roll and said idle roller in operative relation with eachother; substantially as described.

In testimony whereof, I have hereunto set my hand, this 20th day ofApril, 1911.

AUBRY H. MARTIN.

In presence of- H. V. N. PHILIP, JOHN M. JUDGE.

It is hereby certified that the name of the patentee in Letters Patent N0. 1,017,984, granted February 20, 1912, for an improvement inTape-Feeding Mechanism for Recording Instruments, was erroneouslywritten and printed Aubry H. Martin, Whereas said name should have beenwritten and printed Aubrey H. Martin; and

that the said Letters Patent should be read With this correction thereinthat the same may conform to the record of the case in the Patent Ofice,

Signed and sealed this 2nd day of April, A. 1D,, 1912.

G. C. BILLINGS,

Acting Commissioner of Patents,

said roll, idle roller and

